Conveyer.



No. 843,676. PATENTED FEB. 12, 1907.

' G. O. 'GUSTAVSEN.

GONVEYER.

APPLICATION lILEi) APR.27,1906.

2'] vwentoz UNITED STATES CHARLES O. GUSTAVSEN, OF COLUMBUS, OHIO,ASSIGNOR TO JOSEPH A.

PATENT oFFIoE. f

JEFFREY, or COLUMBUS, OHIO.

CONVEYER.

Specification of Letters Patent.

Patented Feb. 12, 1907.

Applies tiou filed April 27. 1906. Serial No. 313,998.

To all IUILOHL it "may concern. 7

Be it known that l, CnAnLns O. GUs'rAvsnN, a citizen of the UnitedStates, residing at Columbus, in the county of Franklin and State. ofOhio, have invented certain new and useful Improvements in Conveyers, ofwhich the following is a specification, reference being-had therein tothe accompanying drawmgs.

This invention relates to screw conveyers for granular and othermaterial.

The object of my invention is to provide a simple and cilective spiralflight-bearing and coupling device for screw conveyers by means of whichthe continuity of the screw is preserved and the conveyer may be set upat any desired height from the bottom of the conveyer-trough.

The matter constituting my invention will be defined in the claims.

I w ill now describe the details of construction and operation of myinvention by reference to the accompanying drawings, in which Figure 1represents a transverse section of a conveyertrough with parts includingmy improvements in end elevation. Fig. 2 represents a longitudinalsection with parts in side elevation. Fig. 3 represents a verticalsection show ing the union of the spiral flightbearing and the ordinaryspiral of the screw conveyer. Fig. 4 represents a cross-sectional viewof a modification. Fig. 5 represents a longitudinal section thereof.

The conveyer-trough A is of the usual constru ction and is supported ina well-known manner. At the place where two lengths of conveyer-screwsare to be coupled together or at any other place where a bearing isdesired there is secured to the angle-irons a at the edges of the trougha transverse clamping-bar B by bolts 0 and nuts, said bar having amiddle longitudinal wearing-block b, as shown in Figs. 1 and 2. Thiswearing-block projects slightly downward centrally into the trough andis adapted to bear upon the spiral flightbearing directly below. In thelower part of the trough below the block b is secured a semicirculartrough-liner C .by

means of the bolts 0 and suitable nuts, as-

shown in Figs. 1 and 2. This trough-liner will be made of any desiredthickness for the purpose of setting up the conveyer at any desiredheight from the bottom of the trough.

The spiral flight-bearing F, which is inter- I posed between the ends oftwo sections of the spiral conveyor E, is itself a section of a spiralconveyer of a length to form one complete circumferential revolution, asrepresented in Figs. 2 and 5. It is provided with arightangle-peripheral flange or edge f. The ends of the spiralbearing-section F are preferably secured to the ends of the spiralblades E at either side, which it serves to unite, by bolts or rivets g,as indicated in Fi s. 2, 3, and 5.

The screw-flight from w ich the spiral bearings F are formed is producedby rolling or otherwise in long sections the same as the regular spiralconveyers (w ith the difference above noted, that its outer edge isturned over or provided w ith an angular flange) and is then dividedinto lengths each comprising a single revolution of the spiral, w hichare then ready to be put in place between the blades E. -Theflight-bearing may or may not be mounted upon a central sleeve or hub I,formed of a short section of pipe arranged the conveyer-fiights E. Inthe accompanying drawings I have represented the conveyer as providedwith such a hub. The ends of the contiguous shafts D are securelyunited, as by means of a cou ling-piece J, that fits Within the ends ofthe ollow shafts D and extends through the sleeve I, if that be used,and the bolts e. The flight-bearing being thus interposed between twospiral conveyer-sections serves both to unite and to support them, thusmaking it possible to build up a continuous spiral conveyer of anydesired length. This flight-bearing revolves the clamp and wearing-blockover the top of the trough. The fli ht-bearing above described andillustrated in Figs. 1 and 2 serves for conveying material of a granularor gritty nature.

When it is desired to convey material which is not of a granular orgritty nature, I may modify the construction as shown in Figs. 4 and 5.In this modification the stituted rollers which proj ect slightl throughthe trough, as shown in Figs. 4 an 5. The clamp-bars P are providedcentrally with journal-boxes h, as shown in Fi 5, and the topbearing-roller b is mounte by its axle in said bearings, so as to bearupon the spiral to aline with the hollow shafts D, that carry onthetrough-liner C and is held in place by i liner C is omitted, and in itsplace are subflight-bearing-F. Near the bottom of the trough and at eachside is mounted a roller 1 whieh are supported by their shafts inbrackets it, having suitable eyes-for the axles and the rollers, asshown in Fig. 4. These rollers are of the same length as the spiralflight-bearing F. Of course rollers of larger or smallendiameter may beused for varying the height at which the flight-bearing is supportedabove the bottom of the trough. The parts of my bearing device may bereadily assembled and are very. efi'ectiverand durable in operation.. v

What -I claim is:-

taeheditonthe ends-of sections of .conveyerserewsfand to.thesh-aftsthereof, means pro-- 'jeeting-iniward orupward from thesurface the.trongh'e for sup orting- 'said spiral dreaming abovethebottom of the trough, and a clamp-barand wearing: device atzthetop ofthe trough for'holdingv the spiral flight-bearing in place,substantially as .described;

2'; 11.11 a; screwconveyer, the combinationiwith ai trou hand-adjacentscrew-sections,-

oiia; spiral ffllght bearing of greater diameter than: the:screw-sections and forming one offagspiral flight-bearing of greaterdiameter.

than thescrews and having 1 a; right angle psliiphenellfiangeandattachedto the endsof ee crew-seetionsrand shafts, a trough liner 1: In a screwconveyer, the combination I with aetrouglr of aispiral flight bearingatof suitable thickness supporting said spiral flight-bearing andclamp-bar and Wearingbar secured to the top of the trough above thespiral flight-bearing, substantially as described.

4. In a screw conveyer, the combination with two alining flight-sectionsand a trough in which they are mounted, of a spiral flightbearinginterposed between the ends of the said flight-sections and comprising asection of a spiral conveyer, a bearing carried by the trough upon whichthe said spiral flight,- bearing rests, and a bearing arranged above thesaid spiral flight-bearing and engaging therewith for holding it downand in place in the trough, substantially as set forth.

5. In a screw conveyer, the combination with two alining spiralflight-sections, E, of a spiral flight-bearing interposed between theends of the said flight-sections, andcomprising a section of ,a spiralconveyer provided at its edge with a peripheral bearing-flange, andmeans for uniting the spiral flight-bearing with the ends of the spiralflight-sections, substantially as set forth.

6. In a screw conveyer, the combination with a trough and two aliningspiral flightsections E, arranged therein, of a spiral flight-bearingintcrposed between the ends of the said flight-sections, and comprising:1 section of aspiral conveyer provided at its edge with abearing-flange, means for uniting the spiral bearing-flight with theends of the flight-sections E, and a bearing supported by the troughupon which the flanged edge of the spiral flight-bearing rests.

In testimony whereof I affix my signature in presence of two witnesses.

CHARLES O. GUSTAVSEN. Witnesses: p

C. W. MILLER, 4 F. (J. BOZENHEAD.

